SpyStudio is the best product to trace user-mode API calls on Windows. SpyStudio is an Application tracer which shows and interprets calls, displaying the results in a structured way which is easy for any IT professional to understand.



Pachtop is described as 'Lightweight, performant, and opensource system monitor that provides real-time monitoring of your system's performance, application monitoring, and detailed system information. Built with Rust and Tauri' and is a process monitoring tool in the os & utilities category. There are more than 50 alternatives to Pachtop for a variety of platforms, including Linux, Windows, Mac, BSD and FreeBSD apps. The best Pachtop alternative is Process Explorer, which is free. Other great apps like Pachtop are htop, System Informer, btop++ and witr.
SpyStudio is the best product to trace user-mode API calls on Windows. SpyStudio is an Application tracer which shows and interprets calls, displaying the results in a structured way which is easy for any IT professional to understand.



Mac OS X System Monitor and Process Explorer Tool atMonitor is the most advanced monitoring tool for Mac OS X that displays system activity in real-time. It is designed to allow quick assessment of computers state and it is powerful enough to make it a core utility in anyones sys.

System Monitoring Center gets information about system performance and usage.




3C Toolbox is the comprehensive toolbox to save battery, tweak, tune, backup, secure and monitor any Android devices running any ROMs, any kernels.




TaskInfo is a poweful utility that combines and improves features of Task Manager and System Information tools. It visually monitors (in text and graphical forms) different types of system information in any Windows system (95, 98, ME, NT 4.

This tool controls programs, disk, CPU. Replace task manager, tweak and tune up XP or Vista. Speed up windows startup. Get rid of spyware and viruses.



Resource Monitor is a system application in Microsoft Windows operating systems. It is used to view information about the use of hardware (CPU, memory, disk, and network) and software (file handles and modules) resources in real time.




psutil is a module providing an interface for retrieving information on all running processes and system utilization (CPU, memory, disks, network, users) in a portable way by using Python, implementing many functionalities offered by command line tools such as: ps, top, df...



This systems administrator, tuner, benchmark tool gives you a huge amount of important performance information in one go. It can output the data in two ways


Python System Monitor (Psymon) is a cross-platform, task and performance monitor.

